Report a question What’s wrong with this question? You cannot submit an empty report. Please add some details. How Are Your DIY Wiring and Fixing Skills? If you’re someone who enjoys tackling home repairs and improvements, it’s essential to have a solid grasp of basic electrical knowledge. This quiz will test your understanding of common electrical issues and concepts that every homeowner should know. 1 / 15 What is the standard voltage for household electrical outlets in the United States? 110V 120V 220V 240V The standard voltage for household electrical outlets in the U.S. is 120 volts. The standard voltage for household electrical outlets in the U.S. is 120 volts. 2 / 15 What is the function of a circuit breaker in a home electrical system? To increase the voltage in the circuit To break the circuit when there is an overload To connect all wires in the circuit To store electrical energy To break the circuit when there is an overload To break the circuit when there is an overload 3 / 15 Which of the following is a common cause of a blown fuse? Overloading a circuit Using a high-voltage appliance Improperly grounding the circuit Connecting too many devices in parallel A blown fuse occurs when the current flowing through a circuit exceeds the fuse’s rating, causing it to burn out and stop the flow of electricity. A blown fuse occurs when the current flowing through a circuit exceeds the fuse’s rating, causing it to burn out and stop the flow of electricity. 4 / 15 Which type of wire is commonly used for electrical installations in homes? Copper wire Steel wire Aluminum wire Plastic wire Copper wire is widely used in electrical systems due to its excellent conductivity and durability. Copper wire is widely used in electrical systems due to its excellent conductivity and durability. 5 / 15 Which of these electrical tools is used to measure current? Multimeter Voltage tester outlet Circuit breaker A multimeter can measure voltage, current, and resistance in electrical circuits. A multimeter can measure voltage, current, and resistance in electrical circuits. 6 / 15 What does “short circuit” mean in an electrical system? When the circuit is disconnected When the current flows along an unintended path When the voltage is too high When a fuse blows A short circuit occurs when electrical current flows through an unintended path, often causing overheating or fires. A short circuit occurs when electrical current flows through an unintended path, often causing overheating or fires. 7 / 15 Which of these materials is NOT a good conductor of electricity? Copper Aluminum Plastic Silver Plastic is an insulator, meaning it does not conduct electricity well. Copper, aluminum, and silver are all excellent conductors used in wiring. Plastic is an insulator, meaning it does not conduct electricity well. Copper, aluminum, and silver are all excellent conductors used in wiring. 8 / 15 What does “GFCI” stand for in electrical terms? Ground Fault Circuit Interrupter General Fault Circuit Indicator General Fuse Circuit Interrupt Grounded Fault Control Indicator A GFCI is a device that protects people from electrical shock by interrupting the circuit if a ground fault occurs. A GFCI is a device that protects people from electrical shock by interrupting the circuit if a ground fault occurs. 9 / 15 Which of the following is NOT a recommended way to prevent electrical fires? Regularly check wires for fraying Use extension cords for permanent wiring Avoid overloading circuits Replace old outlets with new ones Extension cords should only be used temporarily and never as permanent wiring to prevent fire hazards. Extension cords should only be used temporarily and never as permanent wiring to prevent fire hazards. 10 / 15 Which of the following tools would you use to strip the insulation off a wire? Screwdriver Wire stripper Hammer Pliers A wire stripper is specifically designed to remove the insulation from wires without damaging the conductor. A wire stripper is specifically designed to remove the insulation from wires without damaging the conductor. 11 / 15 Which wire gauge is thicker: 12 AWG or 14 AWG? 14 AWG 12 AWG Same thickness Depends on color Lower AWG numbers indicate thicker wires (12 AWG > 14 AWG in diameter). Lower AWG numbers indicate thicker wires (12 AWG > 14 AWG in diameter). 12 / 15 Which of these is a common mistake when installing a new outlet? Connecting the hot wire to the silver screw Tightening all wire connections securely Using a junction box that’s the correct size for the wires Grounding the outlet properly Hot wires should connect to brass screws, and neutral wires to silver screws. Reversing them can cause appliances to malfunction or create a safety hazard. Hot wires should connect to brass screws, and neutral wires to silver screws. Reversing them can cause appliances to malfunction or create a safety hazard. 13 / 15 What does a flickering light most often indicate? A broken light bulb A loose connection in the circuit A power surge from the utility company A faulty circuit breaker Flickering lights usually result from loose wire connections, faulty switches, or a poor connection at the light fixture itself, causing intermittent current flow. Flickering lights usually result from loose wire connections, faulty switches, or a poor connection at the light fixture itself, causing intermittent current flow. 14 / 15 How can you test if a wire is live without touching it? Use a non-contact voltage tester Use a regular screwdriver Look for sparks when you get close Listen for a buzzing sound A non-contact voltage tester safely detects live electricity by sensing electromagnetic fields around energized wires, eliminating the need for physical contact. A non-contact voltage tester safely detects live electricity by sensing electromagnetic fields around energized wires, eliminating the need for physical contact. 15 / 15 What's the number of 100W bulbs on a 15A/120V circuit? 12 15 18 24 NEC continuous load limit: 15A × 120V × 0.8 = 1,440W. 1,440W ÷ 100W = 14.4 → 14 bulbs max. However, typical safety recommendation is 12. NEC continuous load limit: 15A × 120V × 0.8 = 1,440W. 1,440W ÷ 100W = 14.4 → 14 bulbs max. However, typical safety recommendation is 12. Share this quiz if you like it. LinkedIn Facebook VKontakte Restart quiz By WordPress Quiz plugin Post navigation Can You Master the Viral DIY Hacks Taking the Internet by Storm?What Type of Travel Destination Suits Your Personality?
